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Finding the Third Proportional to 561,168 and 842,400

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Solution

The third proportional to 561,168 and 842,400 is: 1,264,572.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    561,168 : 842,400 = 842,400 : x
  2. Step 2: Convert to fraction form
    561,168/842,400 = 842,400/x
  3. Step 3: Cross multiply
    561,168x = 842,400 × 842,400
  4. Step 4: Simplify right side
    561,168x = 709,637,760,000
  5. Step 5: Solve for x
    x = 709,637,760,000/561,168
  6. Step 6: Final answer
    x = 1,264,572.75

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.